Here is one innovative running shoes series named Nike Flex Series which are with great breathability,wearing those shoes let your feet stay cool and dry all the time,also they are greatly of secure fit without pinching or uneven pressure.Plus,their excellent shock absorption does well in preventing you from joint pain,and their classic colorways and durable vamp design make them highly popular.If you love this running shoes very much,you can order it from our Original Nike Running Shoes site,we will serve you wholeheartedly,and welcome for more popular series of running shoes here,all are brand quality and low price selling.